Big Trade: Brady/Nicks for Jennings/Cutler

[Brad1222]

I have Brady and Shaub and have been trying to trade one away to upgrade my WR's. Since I'm in a 10 team league, everyone has decent QB's, and its been difficult to trade for a top tier WR. I was offered either Jennings or Bowe and Cutler for Brady and Nicks. What do you think? Here is my team below:

QB: Brady, Shaub
RB: MJD, P. Thomas, Moreno, Bradshaw, M. Bell
WR: V. Jackson, S. Smith (Car), Hester, Collie, Nicks, A. Gonzalez
TE: Cooley
K: Crosby
Def: Jets, NO

This team I am trying to trade with has Witten. I was thinking of trying to throw Witten in the trade for COOLey, which I guess would be a slight upgrade.

[Brad1222]

Updated trade offer, I give up:
Brady Nicks and cooley for Cutler Jennings and Witten

Please help